变压器局部放电在线监测中的现场干扰分析

Analysis of Field Interference from a Transformer's Partial Discharge under Operation

为了最大限度地抑制变压器局部放电的干扰,需要对干扰的种类和特征有一个清楚的认识。本文对某发电厂一台500kV变压器进行了离线和在线试验,测量了不同测点的干扰情况,其中包括变压器低压供电系统中的干扰,分析了干扰的种类和特点,为抑制各种类型的干扰提供了有效的依据。

A clear knowledge of the types and features of interference should be obtained in order to inhibit the interference of a transformer's partial discharge. This essay tests a 500kv transformer under operation and out of operation separately, measures the interference at different points, analyzes the types and features of the in- terference which supplies effective basis for inhibiting various types of interference.